The search is scheduled to begin again at 9 a.m. Monday for Charles Jackson, 26, and Jason Michael Cobb, 30, who launched a 15-foot boat around 1 a.m. Saturday from Black Hammock Fish Camp near Oviedo, on the southeast part of Lake Jesup.

When the men did not return, their families from Deltona and Osteen notified authorities.

Officers from three agencies have searched Lake Jesup, and on Sunday night officials feared it might become a "recovery" effort and not a rescue.

Sheriff’s deputies from Seminole and Volusia counties launched a search, and found their boat about 3/4 of a mile from the camp. However, the men have not been found.

The Florida Fish and Wildlife Conservation Commission has assumed command of the operation.

FWC spokeswoman Lt. Joy Hill said there does not appear to be any damage to the boat, which was found in some cattails. Two life jackets were found in the boat.

Authorities do not know if either man had been wearing a flotation device.